Unable to modify from U-Boot to Qi.

Andy Green andy at openmoko.com
Mon Jan 19 16:51:19 CET 2009


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Somebody in the thread at some point said:

| Is there a way for QI bootloader to show
| options if there are multiple distros in my SD?
| I dont know how to do it? In this context, does
| u-boot overweigh Qi or am i missing something
| about Qi for Multiboot?

Qi's idea is just to get a Linux kernel and run it.  Hopefully it won't
need extending itself beyond that so it's maintainable and reliable.

If a boot menu is wanted, just point Qi at a kernel + initrd or mini
rootfs that provides the boot menu action, it can then allow as
beautiful a boot menu as you like using normal Linux libs and tools, and
either chroot into the final rootfs or kexec into a second kernel from
the final rootfs.  I guess it should all fit in 3MB or so.

Such a kernel + rootfs can be pretty chopped down and then fast, since
typically there's a lot of stuff you don't need for that job (eg, whole
networking stack unless you want features around that).

- -Andy
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